Excel queries and connections12/24/2022 As we type into the formula box, the message will change. This is just one of many potential messages. The screenshot above shows the Token RightParen expected message. Unless we’ve been working with Power Query for a while, we won’t understand what many of these messages mean, and even then, those error messages can be confusing. Of the M coding options, the Custom Column feature is the most accessible and the one we are more likely to useĬustom Columns contain a warning at the bottom of the screen to help guide us with our formulas. Let’s start by looking at Custom Columns, then move onto looking at the Advanced Editor and Formula Bar together. The three main places where we can edit the M code: A comma or mistyped word is enough to cause the process to fail. M code errors can be challenging to find, especially if you’re new to the language. These are driven by either errors in the M code, or users not understanding how Power Query operates. Process creation errors occur as we to build our query. We will look at each of these in turn and find out how to fix common issues. Types of errorsĮrrors messages can appear in a variety of places such as in the Queries & Connections pane, within the Power Query Editor, or maybe just as a value in a field. While we can’t cover every error, the purpose of this post is to help demystify some of the more common errors you are likely to encounter. Over time you will start to understand what the errors are and what causes them. Now that you’re working with Power Query, the error messages appear strange and unfamiliar and can be daunting at first. You’ve probably forgotten the first time you encountered the #NAME? or #VALUE! errors in Excel, but over time you hopefully worked out what to do when they arise. Just like Excel and other applications, Power Query has it’s own unique error messages. I’m sure you’ve not got this far without encountering your fair share of Power Query errors.
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